JP4378606B2 - Tamper evidence structure of cap - Google Patents

Tamper evidence structure of cap Download PDF

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JP4378606B2
JP4378606B2 JP2003302987A JP2003302987A JP4378606B2 JP 4378606 B2 JP4378606 B2 JP 4378606B2 JP 2003302987 A JP2003302987 A JP 2003302987A JP 2003302987 A JP2003302987 A JP 2003302987A JP 4378606 B2 JP4378606 B2 JP 4378606B2
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tamper
evidence ring
branch piece
tamper evidence
ring
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JP2005067701A (en
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昇 末政
政男 加藤
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Mitsubishi Plastics Inc
Tokyo Light Industry Co Ltd
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Mitsubishi Plastics Inc
Tokyo Light Industry Co Ltd
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Description

本発明は、容器内の内容物を注出する注出部にねじ係合されるキャップ本体部を操作してキャップ本体部を一度開けたら、この開栓状態を示す痕跡が明確に分かるようにしたキャップのタンパーエビデンス構造に関するものである。   In the present invention, once the cap main body portion is opened by operating the cap main body portion that is screw-engaged with the pouring portion that pours out the contents in the container, the trace indicating the opened state can be clearly seen. The tamper evidence structure of the cap.

従来、ボトル等に装着したキャップにおいて、キャップを一度開栓すると、その開栓行為が明確に分かるようにした構造を有するキャップは、既に知られている。例えば、特許文献１には、キャップ本体のスカート部にブリッジ部を介して連結されるタンパーエビデントリングを備え、タンパーエビデントリングの内周の同一円周上に抜け止め凸部と掛爪部とを設け、キャップ本体が装着される容器首部には、タンパーエビデントリングの掛爪部が係合し得る位置に係止爪部と、タンパーエビデントリングの抜け止め凸部が当接する抜け止め突起部とが設けられ、キャップ本体を開栓方向に回すと、掛爪部が係止爪部に係合し、キャップ本体がさらに回動することによりブリッジ部が切断されて、タンパーエビデントリングがキャップ本体から離脱して容器首部に残り、この状態により開栓履歴を視認できることが開示されている。   2. Description of the Related Art Conventionally, caps having a structure in which a cap attached to a bottle or the like has a structure in which once the cap is opened, the opening action is clearly understood are already known. For example, Patent Document 1 includes a tamper-evident ring connected to a skirt portion of a cap body via a bridge portion, and a retaining protrusion and a hooking claw portion on the same circumference of the inner circumference of the tamper-evident ring. The container neck to which the cap body is mounted is provided with a retaining claw portion and a retaining protrusion that comes into contact with the hooking claw portion of the tamper-evident ring at a position where the hooking claw portion of the tamper-evident ring can be engaged. When the cap body is turned in the opening direction, the hooking claw part engages with the locking claw part, and the cap body further rotates to cut the bridge part, so that the tamper evident ring Is released from the cap body and remains on the container neck, and it is disclosed that the opening history can be visually recognized in this state.

特開２００１−２３３３６５号公報JP 2001-233365 A

上述したように、特許文献１は、開栓すると、ブリッジ部が切断されて、タンパーエビデントリングがキャップ本体から離脱され、離脱したタンパーエビデントリングを容器首部に残す形態であり、この特許文献１では、離脱したタンパーエビデントリングが容器首部から抜け落ちないようにするための脱落防止構造を、タンパーエビデントリング及び容器首部に設けているために構造が複雑化して、製造原価が高くなる虞がある。
また、特許文献１では、開栓すると、ブリッジ部が切断され、開栓したことが明らかとなるが、再び栓を閉めてしまうと、切断されたブリッジ部が外見上繋がったように見え、開栓されたかどうかの開栓履歴を判断しにくいという欠点があった。
さらに、飲料水等が充填される容器の口部に、タンパーエビデンスリングが残されている場合、容器の口部に口をつけて飲料水等を飲む時に、タンパーエビデンスリングが唇等に接触して不快感を感じることがあった。 As described above, Patent Document 1 is a form in which, when the plug is opened, the bridge portion is cut, the tamper evidence ring is detached from the cap body, and the detached tamper evidence ring is left in the container neck. 1, since the tamper evidence ring and the container neck are provided with a drop-off preventing structure for preventing the detached tamper evidence ring from falling off the container neck, the structure becomes complicated and the manufacturing cost may increase. There is.
Further, in Patent Document 1, when the plug is opened, it is clear that the bridge portion is cut and opened, but when the plug is closed again, the cut bridge portion appears to be connected in appearance and opened. There is a drawback that it is difficult to determine the history of opening of the plug.
In addition, if a tamper evidence ring is left in the mouth of a container filled with drinking water, etc., the tamper evidence ring will come into contact with the lips etc. I felt uncomfortable.

本発明は、かかる点に鑑みてなされたものであり、タンパーエビデンスリングを容器側の注出部に残すことなく、開栓履歴を容易に視認できるキャップのタンパーエビデンス構造を提供することを目的とする。   The present invention has been made in view of such a point, and an object thereof is to provide a tamper evidence structure of a cap that allows a tapping evidence ring to be easily visually recognized without leaving a tamper evidence ring in a pouring part on a container side. To do.

本発明は、上記課題を解決するための手段として、請求項１に記載した発明は、容器内の内容物を注出する筒状の注出部と、該注出部にねじ係合する有底筒状のキャップ本体部とからなり、該キャップ本体部は、その下縁に沿って筒状のタンパーエビデンスリングを複数のブリッジ部を介して垂下し、該タンパーエビデンスリングの内周面に、開栓方向の先端に係止端部を有する回り止め手段をタンパーエビデンスリングの中心に対して対向する位置に設け、且つ各回り止め手段が接続される前記タンパーエビデンスリングの壁部周辺に、前記タンパーエビデンスリングを分割可能とする弱化線を縦方向に設けてなり、前記各回り止め手段は、前記タンパーエビデンスリングの内周面から分岐し開栓方向に延び、先端に前記係止端部を有する分岐片と、該分岐片を収容可能とする前記タンパーエビデンスリングの内周面に設けた凹部とから構成され、前記注出部は、前記タンパーエビデンスリングが嵌合する胴部に、開栓方向に対向する係止部を有する係止爪部を設けてなり、前記キャップ本体部と前記注出部とが係合された状態で、前記回り止め手段の係止端部と前記係止爪部の係止部とが対向して配置されることを特徴とするものである。 As a means for solving the above-mentioned problems, the present invention is characterized in that the invention described in claim 1 is a cylindrical pouring part for pouring the contents in the container, and a screw engaging with the pouring part. A cap body portion having a bottom cylindrical shape, and the cap body portion hangs a cylindrical tamper evidence ring along a lower edge of the cap body portion via a plurality of bridge portions, on the inner peripheral surface of the tamper evidence ring, A detent means having a locking end at the tip in the opening direction is provided at a position facing the center of the tamper evidence ring , and around the wall portion of the tamper evidence ring to which each detent means is connected, A weakening line that can divide the tamper-evidence ring is provided in the vertical direction, and each of the detent means branches from the inner peripheral surface of the tamper-evidence ring and extends in the plug-opening direction, and the locking end portion is provided at the tip. Have And岐片, consists with the recess formed on the inner peripheral surface of the tamper evidence ring to accommodate the branch piece, the spout portion, the body portion to which the tamper evidence ring is fitted, unplugging direction A locking claw portion having a locking portion opposed to the locking body, and in a state where the cap main body portion and the extraction portion are engaged, the locking end portion of the detent means and the locking claw portion This is characterized in that it is arranged so as to face the locking portion.

このように構成することにより、容器内の内容物を注出する注出部に係合されているキャップ本体部を、開栓方向に回すと、タンパーエビデンスリングの内周面に設けた回り止め手段の係止端部が、注出部の胴部に設けた係止爪部の係止部に干渉して、回り止め手段から時計回り方向のタンパーエビデンスリングの回転移動が規制されるので、タンパーエビデンスリングに設けた弱化線が切り裂かれ、タンパーエビデンスリングが分割されることになる。これにより、タンパーエビデンスリングを容器側の注出部に残すことなく、タンパーエビデンスリングの分割状態により開栓履歴を視認できる。また、回り止め手段を弾性変形可能な分岐片と、分岐片を収納可能とする凹部とから構成したので、キャップ本体部を時計周り方向に回して、内容物を注出する注出部に係合する際、分岐片が胴部に設けた係止爪部を乗り越える時分岐片が弾性変形して、その一部が凹部に押し込まれ容易に係止爪部を乗り越えることができる。 With this configuration, when the cap main body engaged with the pouring part for pouring the contents in the container is turned in the opening direction, the detent provided on the inner peripheral surface of the tamper evidence ring Since the locking end portion of the means interferes with the locking portion of the locking claw portion provided on the trunk portion of the dispensing portion, the rotational movement of the tamper evidence ring in the clockwise direction from the rotation preventing means is restricted, The weakening line provided in the tamper evidence ring is torn and the tamper evidence ring is divided. Thereby, the opening history can be visually recognized by the division | segmentation state of a tamper evidence ring, without leaving a tamper evidence ring in the extraction part by the side of a container. In addition, since the anti-rotation means is composed of a branch piece that can be elastically deformed and a recess that can store the branch piece, the cap main body portion is rotated clockwise to engage the dispensing portion for dispensing the contents. At the time of joining, the branch piece elastically deforms when the branch piece gets over the locking claw portion provided on the trunk portion, and a part of the branch piece is pushed into the recess, so that it can easily get over the locking claw portion.

請求項２に記載した発明は、請求項１に記載した発明において、前記分岐片の係止端部は、タンパーエビデンスリングの中心から放射方向に向かう鉛直面と、外方の角部を傾斜させた傾斜面とを有し、前記弱化線は、前記凹部により設けられた薄肉壁部の、前記分岐片が分岐する基部側に形成され、この位置における前記薄肉壁部にスリット部を縦方向に形成すると共に、該スリット部に連設する薄膜部を縦方向に形成して構成され、前記タンパーエビデンスリングに一体に接続された分岐片の基部に、前記分岐片を内方に折り曲げるための薄肉壁部を縦方向に形成することを特徴とするものである。 According to a second aspect of the present invention, in the first aspect of the present invention, the locking end portion of the branching piece is formed by inclining a vertical plane extending radially from the center of the tamper-evidence ring and an outer corner portion. And the weakening line is formed on the thin wall portion provided by the concave portion on the base side where the branch piece branches, and the slit portion is vertically formed in the thin wall portion at this position. A thin wall portion for bending the branch piece inwardly at the base of the branch piece integrally formed with the tamper-evidence ring. The wall portion is formed in the vertical direction .

このように構成することにより、弱化線を、凹部により設けられた薄肉壁部の、分岐片の基部側に設け、その位置における薄肉壁部にスリット部を縦方向に形成すると共に、このスリット部に連設する薄膜部を縦方向に形成して構成したので、キャップ本体部を開栓方向に軽く回すだけで、タンパーエビデンスリングに設けた弱化線を容易に切り裂くことができる。また、キャップ本体部を開栓方向に回すと、タンパーエビデンスリングの内周面に設けた分岐片の係止端部が、注出部の胴部に設けた係止爪部の係止部に干渉し、さらに回すと、タンパーエビデンスリングに設けた薄肉壁部が外方に突出するようにして、分岐片が内側に折れ曲がると同時に弱化線が切り裂かれて、折れ曲がった分岐片がタンパーエビデンスリングと胴部との間に挟まれる状態となる。 By configuring in this way , the weakening line is provided on the base side of the branch piece of the thin wall portion provided by the recess, and the slit portion is formed in the vertical direction in the thin wall portion at that position, and the slit portion Since the thin film portion provided continuously with the cap is formed in the vertical direction, the weakened line provided in the tamper evidence ring can be easily cut by simply turning the cap body portion lightly in the opening direction. When the cap body is turned in the direction of opening, the locking end of the branch piece provided on the inner peripheral surface of the tamper-evidence ring becomes the locking part of the locking claw provided on the barrel of the dispensing part. Interfering and turning further, the thin wall part provided on the tamper evidence ring protrudes outward, the branch piece bends inward and at the same time the weakening line is torn, and the bent branch piece becomes the tamper evidence ring. It will be in a state of being sandwiched between the body part.

本発明によれば、内容物を注出する注出部に係合されているキャップ本体部を、開栓方向に回すと、キャップ本体部のタンパーエビデンスリングに設けた回り止め手段の分岐片の係止端部が、注出部の胴部に設けた係止爪部の係止部に干渉して、タンパーエビデンスリングの回転移動が規制されると共に、タンパーエビデンスリングの薄肉壁部が外方に突出するようにして、分岐片が内方に向って折れ曲がると同時に、薄肉壁部に設けた弱化線が切り裂かれ、折れ曲がった分岐片がタンパーエビデンスリングと胴部との間に挟まれる状態となる。この状態を視認することにより、タンパーエビデンスリングを容器側の注出部に残すことなく、開栓履歴を判断でき、タンパーエビデンスリングを容器側の注出部に残す形態と比較すると、タンパーエビデンスリングの注出部からの脱落防止構造等を設ける必要がなく、簡易な構造で構成でき、製造原価を削減することができる。しかも、容器側の注出部にタンパーエビデンスリングが残っていないので、例えば、飲料水等を飲む時等に、容器側の注出部に口を付けても不快感を感じることはない。   According to the present invention, when the cap body portion engaged with the pouring portion for pouring the contents is turned in the opening direction, the branch piece of the detent means provided on the tamper evidence ring of the cap body portion is The locking end part interferes with the locking part of the locking claw part provided in the body part of the dispensing part, and the rotational movement of the tamper evidence ring is restricted, and the thin wall part of the tamper evidence ring is outward. The branch piece bends inward so that it protrudes inward, and at the same time, the weakening line provided on the thin wall portion is torn, and the bent branch piece is sandwiched between the tamper evidence ring and the trunk portion. Become. By visually checking this state, it is possible to judge the opening history without leaving the tamper-evidence ring in the container-side extraction part, and in comparison with the form in which the tamper-evidence ring is left in the container-side extraction part, the tamper-evidence ring It is not necessary to provide a structure for preventing the dropout portion from dropping out, and a simple structure can be provided, thereby reducing the manufacturing cost. Moreover, since the tamper evidence ring does not remain in the container-side dispensing part, for example, when drinking water or the like, there is no discomfort even if a mouth is attached to the container-side dispensing part.

一方、キャップ本体部を時計周り方向に回して注出部に係合する際には、タンパーエビデンスリングに設けた弾性変形可能な分岐片の一部が凹部に押し込まれるので、分岐片は係止爪部を容易に乗り越えることができ、キャップ本体部をスムーズに注出部に係合することができる。   On the other hand, when the cap main body is turned clockwise and engaged with the dispensing part, a part of the elastically deformable branch piece provided on the tamper evidence ring is pushed into the recess, so that the branch piece is locked. The claw portion can be easily climbed over, and the cap main body portion can be smoothly engaged with the extraction portion.

以下、本発明を実施するための最良の形態を図１〜図９に基いて詳細に説明する。
本発明の実施の形態に係るキャップは、図１に示すように、内容物が充填される容器の口部３に装着され、内容物を注出する下栓（注出部）２と、この下栓２にねじ係合される上栓（キャップ本体部）１とから構成されている。 Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to FIGS.
As shown in FIG. 1, a cap according to an embodiment of the present invention is attached to a mouth part 3 of a container filled with contents, and a lower stopper (pouring part) 2 for pouring the contents, An upper plug (cap body portion) 1 that is screw-engaged with the lower plug 2 is constituted.

下栓２には、図１〜図３に示すように、内容物を注出する注出口４を形成する壁部５の外周面と胴部６の内周面との間に環状空間７が形成されている。また、胴部６の下方胴部６ｂの内周面には、周方向に延びる係合突条８が一条形成されている。
そして、下栓２の環状空間７を容器の口部３に嵌合させれば、下栓２の下方胴部６ｂの内周面に設けた係合突条８が容器の口部３の外周面に設けた凹部３ａを押圧した状態となり、下栓２が容器の口部３に装着される。 As shown in FIGS. 1 to 3, the lower plug 2 has an annular space 7 between the outer peripheral surface of the wall portion 5 forming the spout 4 for pouring the contents and the inner peripheral surface of the trunk portion 6. Is formed. Further, a single engagement protrusion 8 extending in the circumferential direction is formed on the inner peripheral surface of the lower body 6 b of the body 6.
Then, when the annular space 7 of the lower stopper 2 is fitted into the mouth portion 3 of the container, the engaging protrusion 8 provided on the inner peripheral surface of the lower body portion 6b of the lower stopper 2 becomes the outer periphery of the mouth portion 3 of the container. The recessed portion 3 a provided on the surface is pressed, and the lower stopper 2 is attached to the mouth portion 3 of the container.

また、下栓２には、図２及び図３に示すように、壁部５から連続して上方に延びる上方壁部５ａの外周面に、上栓１と係合するねじ部５ｂが形成されている。また、上方壁部５ａの内方には、内容物の注出方向を案内する円筒状の案内壁部１０が形成されており、この案内壁部１０の下端を塞ぐ閉塞板１１が環状溝１１ａを介して一体に形成されている。この閉塞板１１には、環状溝１１ａを切断し注出口４を開放するためのリング状の把持部１２が、環状溝１１ａの内側に一体に形成されている。   Further, as shown in FIGS. 2 and 3, the lower plug 2 is formed with a screw portion 5 b that engages with the upper plug 1 on the outer peripheral surface of the upper wall portion 5 a that continuously extends from the wall portion 5. ing. In addition, a cylindrical guide wall portion 10 that guides the content pouring direction is formed inside the upper wall portion 5a, and a closing plate 11 that closes the lower end of the guide wall portion 10 is an annular groove 11a. It is integrally formed via A ring-shaped grip 12 for cutting the annular groove 11a and opening the spout 4 is formed integrally with the closing plate 11 inside the annular groove 11a.

さらに、下栓２の胴部６の、後述するタンパーエビデンスリング２１が嵌合する上方胴部６ａには、その外周面から外方に突出する係止爪部１５が、周方向に所定の間隔を置いて複数（図では７個）形成されている。
この係止爪部１５は、図２において、上方胴部６ａの外周面から接線方向に向かう（時計回り方向に向かう）傾斜面１５ａと、上方胴部６ａの外周面から放射方向に向かい開栓方向と対向する鉛直面からなる係止部１５ｂとを有する凸部として構成されている。
また、胴部６の下方胴部６ｂの周りには、上方胴部６ａと段差を設けるように、帯状体の保護バンド１３が形成されており、この保護バンド１３は、下方胴部６ｂの外周面と所定の隙間を置いて、下方胴部６ｂを取り巻くように形成されている。 Further, an upper claw portion 15 projecting outward from the outer peripheral surface of the upper barrel portion 6a of the barrel portion 6 of the lower plug 2 to which a tamper evidence ring 21 described later is fitted has a predetermined interval in the circumferential direction. A plurality (seven in the figure) are formed.
In FIG. 2, the locking claw portion 15 is opened from the outer peripheral surface of the upper trunk portion 6a in a tangential direction (clockwise direction) and is opened from the outer peripheral surface of the upper trunk portion 6a in the radial direction. It is comprised as a convex part which has the latching | locking part 15b which consists of a perpendicular surface which opposes a direction.
A band-shaped protective band 13 is formed around the lower body 6b of the body 6 so as to have a step with the upper body 6a. The protective band 13 is formed on the outer periphery of the lower body 6b. It is formed so as to surround the lower body 6b with a predetermined gap from the surface.

上栓１は、図１、図４及び図５に示すように、下栓２のねじ部５ｂと係合するねじ部２０ａを内周面に有する有底円筒状からなる係合本体部２０と、この係合本体部２０の下縁に一体に接続される環状円板からなる鍔部２０ｂと、この鍔部２０ｂの外周端と複数（図５では８個）のブリッジ部２２（図５の黒塗部）を介して連結される円筒状のタンパーエビデンスリング２１とから構成されている。   As shown in FIGS. 1, 4, and 5, the upper plug 1 includes an engagement main body portion 20 having a bottomed cylindrical shape having a screw portion 20 a that engages with the screw portion 5 b of the lower plug 2 on the inner peripheral surface. , A flange portion 20b formed of an annular disk integrally connected to the lower edge of the engagement main body portion 20, an outer peripheral end of the flange portion 20b, and a plurality (eight in FIG. 5) of bridge portions 22 (in FIG. 5). The cylindrical tamper-evidence ring 21 is connected via a black coating portion).

また、係合本体部２０の天面部の底面には、上栓１が下栓２に係合した際、下栓２の案内壁部１０の内周面に密着する円筒部２０ｃが形成されている。さらに、各ブリッジ部２２と２２との間には、ダンパーエビデンスリング２１の上端から上方に突出する側面視が略矩形状の突起部２３ａ（図５の白抜部）が複数（図５では６個）形成されており、また、各ブリッジ部２２と２２との間には、図４及び図９に示すように、ダンパーエビデンスリング２１の上端から上方に突出する側面視が梯形状の突起部２３ｂが２個所設けられている。さらに、図９に示すように、鍔部２０ｂの底面には、突起部２３ｂの上端の一部を収容する凹部２０ｂ’が、突起部２３ｂと対応する位置に形成されている。   Further, a cylindrical portion 20c is formed on the bottom surface of the top surface portion of the engagement main body portion 20 so as to be in close contact with the inner peripheral surface of the guide wall portion 10 of the lower plug 2 when the upper plug 1 is engaged with the lower plug 2. Yes. Furthermore, between each bridge part 22 and 22, there are a plurality of protrusions 23a (outlined parts in FIG. 5) projecting upward from the upper end of the damper evidence ring 21 in a substantially rectangular shape in side view (in FIG. As shown in FIGS. 4 and 9, a protrusion having a trapezoidal shape in a side view protruding upward from the upper end of the damper evidence ring 21 is formed between each bridge portion 22 and 22. Two 23b are provided. Furthermore, as shown in FIG. 9, a recess 20b 'for accommodating a part of the upper end of the projection 23b is formed on the bottom surface of the flange 20b at a position corresponding to the projection 23b.

タンパーエビデンスリング２１には、図５及び図６に示すように、その内周面に、タンパーエビデンスリング２１の開栓方向の回り止めとなる回り止め手段３０が一対形成されている。この回り止め手段３０は、タンパーエビデンスリング２１の内周面から分岐して、タンパーエビデンスリング２１の幅（高さ方向）とほぼ同じ幅で開栓方向に延び、先端に係止端部２４ｂを有する分岐片２４と、この分岐片２４の一部を収納可能とするタンパーエビデンスリング２１の内周面に設けた凹部２５とから構成されている。
分岐片２４の係止端部２４ｂは、タンパーエビデンスリング２１の中心から放射方向に向かう鉛直面と、外方の角部を時計回り方向に傾斜させた傾斜面とを有している。また、凹部２５により設けられた薄肉壁部２６は、分岐片２４が分岐する外側基部２４ａ側に向ってさらに薄肉となるように形成されている。
また、分岐片２４から時計回り方向に近接する位置、すなわち分岐片２４の内側基部２４ｃ付近のタンパーエビデンスリング２１には、分岐片２４を内方に向って折り曲げるための薄肉壁部２６ａが縦方向に形成されている。 As shown in FIGS. 5 and 6, the tamper evidence ring 21 is formed with a pair of anti-rotation means 30 that prevent rotation of the tamper evidence ring 21 in the opening direction. The anti-rotation means 30 branches off from the inner peripheral surface of the tamper evidence ring 21 and extends in the opening direction with substantially the same width as the width (height direction) of the tamper evidence ring 21, and a locking end 24b is provided at the tip. And a concave portion 25 provided on the inner peripheral surface of the tamper-evidence ring 21 that can accommodate a part of the branch piece 24.
The locking end portion 24b of the branch piece 24 has a vertical surface that extends in the radial direction from the center of the tamper evidence ring 21, and an inclined surface in which an outer corner is inclined clockwise. Moreover, the thin wall part 26 provided by the recessed part 25 is formed so that it may become thin further toward the outer base 24a side where the branch piece 24 branches.
In addition, a thin wall portion 26a for bending the branch piece 24 inward is formed in the tamper-evidence ring 21 in the clockwise direction from the branch piece 24, that is, in the vicinity of the inner base 24c of the branch piece 24. Is formed.

図６及び図７に示すように、タンパーエビデンスリング２１を容易に分割可能とする弱化線２７は、薄肉壁部２６の、分岐片２４が分岐する外側基部２４ａ側端に形成されており、その位置における薄肉壁部２６を、その上部壁に上方開放したスリット部２８を形成すると共に、下部壁にスリット部２８に連設する薄膜部２９を縦方向に形成して構成されている。
また、弱化線２７は、薄肉壁部２６の下部壁に下方開放したスリット部２８を縦方向に形成し、上部壁にスリット部２８に連設する薄膜部２９を縦方向に形成して構成されることもある。 As shown in FIGS. 6 and 7, the weakening line 27 that makes it possible to easily divide the tamper evidence ring 21 is formed at the outer base 24a side end of the thin wall portion 26 where the branch piece 24 branches, The thin wall portion 26 at the position is formed by forming a slit portion 28 that opens upward on the upper wall thereof, and a thin film portion 29 connected to the slit portion 28 is formed on the lower wall in the vertical direction.
The weakening line 27 is formed by forming a slit portion 28 opened downward in the lower wall of the thin wall portion 26 in the vertical direction, and forming a thin film portion 29 connected to the slit portion 28 in the upper wall in the vertical direction. Sometimes.

次に、本発明の実施の形態に係るキャップのタンパーエビデンス構造の作用について説明する。
上栓１を下栓２に係合する時には、上栓１のねじ部２０ａを下栓２にねじ部５ｂに合わせ、上栓１を時計回り方向に回せば、タンパーエビデンスリング２１の回り止め手段３０を構成する分岐片２４が、その内側基部２４ｃ側から、下栓２の上方胴部６ａに設けた係止爪部１５を、その傾斜面１５ａに沿って乗り越えると同時に、弾性変形可能な分岐片２４の一部が凹部２５に押し込まれるので、分岐片２４は係止爪部１５を容易に乗り越えることができ、上栓１はスムーズに回転下降して下栓２に係合される。
そして、係合状態においては、図８に示すように、タンパーエビデンスリング２１の分岐片２４は、材料の弾性により復元しており、タンパーエビデンスリング２１のいずれか一方の分岐片２４の係止端部２４ｂと、下栓２の上方胴部６ａに複数設けた内の１個の係止爪部１５の係止部１５ｂとが、対向するように配置される。 Next, the operation of the tamper evidence structure of the cap according to the embodiment of the present invention will be described.
When the upper plug 1 is engaged with the lower plug 2, the screw portion 20 a of the upper plug 1 is aligned with the screw portion 5 b of the lower plug 2, and the upper plug 1 is rotated in the clockwise direction to prevent rotation of the tamper evidence ring 21. The branch piece 24 that constitutes 30 crosses the locking claw portion 15 provided on the upper trunk portion 6a of the lower plug 2 along the inclined surface 15a from the inner base portion 24c side, and at the same time, the branch that can be elastically deformed. Since a part of the piece 24 is pushed into the recess 25, the branch piece 24 can easily get over the locking claw portion 15, and the upper plug 1 is smoothly rotated and lowered to be engaged with the lower plug 2.
In the engaged state, as shown in FIG. 8, the branch piece 24 of the tamper evidence ring 21 is restored by the elasticity of the material, and the locking end of one branch piece 24 of the tamper evidence ring 21 is restored. The part 24b and the locking part 15b of one locking claw part 15 provided in the upper body part 6a of the lower plug 2 are arranged so as to face each other.

開栓するときは、下栓２に係合されている上栓１を、開栓方向（反時計回り方向）に回すと、タンパーエビデンスリング２１のいずれか一方の分岐片２４の係止端部２４ｂが、下栓２の上方胴部６ａに複数設けた内の１個の係止爪部１５の係止部１５ｂに干渉し、分岐片２４から時計回り方向のタンパーエビデンスリング２１の回転移動が規制されると共に、タンパーエビデンスリング２１の薄肉壁部２６ａが外方（図８の矢印Ｅの方向）に突出するようにして、分岐片２４が内方（図８の矢印Ｆの方向）に向って折れ曲がる。それと同時に、薄肉壁部２６に設けた弱化線２７が切り裂かれ、折れ曲がった分岐片２４がタンパーエビデンスリング２１と上方胴部６ａとの間に挟まれる状態となる。
さらに、上栓１を回すと、タンパーエビデンスリング２１の他方の分岐片２４の係止端部２４ｂが、同じように、下栓２の上方胴部６ａに複数設けた内の１個の係止爪部１５の係止部１５ｂに干渉し、分岐片２４が折れ曲がりタンパーエビデンスリング２１と上方胴部６ａとの間に挟まれる状態となる。 When opening the stopper, if the upper stopper 1 engaged with the lower stopper 2 is turned in the opening direction (counterclockwise direction), the locking end of one branch piece 24 of the tamper-evidence ring 21 24b interferes with the locking portion 15b of one locking claw 15 provided in the upper barrel portion 6a of the lower plug 2, and the tamper evidence ring 21 rotates in the clockwise direction from the branch piece 24. In addition to being regulated, the branch piece 24 faces inward (in the direction of arrow F in FIG. 8) so that the thin wall portion 26a of the tamper evidence ring 21 protrudes outward (in the direction of arrow E in FIG. 8). Then bend. At the same time, the weakening line 27 provided on the thin wall portion 26 is torn, and the bent branch piece 24 is sandwiched between the tamper evidence ring 21 and the upper trunk portion 6a.
Further, when the upper plug 1 is turned, the locking end 24b of the other branch piece 24 of the tamper-evidence ring 21 is similarly locked to one of the plurality provided on the upper body 6a of the lower plug 2. Interference with the locking portion 15b of the claw portion 15 causes the branch piece 24 to bend and be sandwiched between the tamper-evidence ring 21 and the upper body portion 6a.

その後、最後まで開栓する時には、さらに上栓１を回せば、タンパーエビデンスリング２１が２箇所で分割されたことにより、その開口が拡大しているために、分岐片２４の係止端部２４ｂが係止爪部１５の係止部１５ｂに干渉せず、タンパーエビデンスリング２１を付けたまま上栓１はスムーズに回転上昇して、下栓２から離脱される。   Thereafter, when the top plug is opened to the end, if the upper plug 1 is further turned, the tamper-evidence ring 21 is divided at two locations, and the opening is enlarged. Does not interfere with the locking portion 15b of the locking claw portion 15, and the upper plug 1 smoothly rotates and rises with the tamper-evidence ring 21 attached, and is detached from the lower plug 2.

以上説明したように、本発明の実施の形態に係るキャップのタンパーエビデンス構造によれば、下栓２に係合されている上栓１を、開栓方向に回すと、タンパーエビデンスリング２１に設けた一対の分岐片２４の係止端部２４ｂのそれぞれが、時間差で上方胴部６ａに設けた係止爪部１５の係止部１５ｂに干渉して、それぞれの分岐片２４が薄肉壁部２６ａから内方に折れ曲がると同時に弱化線２７が切り裂かれ、２箇所の位置で折れ曲がった分岐片２４がタンパーエビデンスリング２１と上方胴部６ａとの間に挟まれる状態となる。この状態を視認することにより開栓されているか否かの開栓履歴を判断することができる。しかも、開栓する時、タンパーエビデンスリング２１に設けた一対の分岐片２４のそれぞれが、時間差で下栓２の上方胴部６ａに設けた係止爪部１５に干渉して、タンパーエビデンスリング２１を１箇所ずつ分割するので、例えば、多数形成されたブリッジを一気に切断して開栓履歴を視認する形態と比較すると、開栓する時に負荷する力を軽減できる。   As described above, according to the tamper-evidence structure of the cap according to the embodiment of the present invention, when the upper stopper 1 engaged with the lower stopper 2 is turned in the opening direction, the tamper-evidence ring 21 is provided. Each of the locking end portions 24b of the pair of branch pieces 24 interferes with the locking portion 15b of the locking claw portion 15 provided in the upper body portion 6a with a time difference, so that each branch piece 24 has a thin wall portion 26a. The weakening line 27 is cut at the same time as it is bent inward, and the branch piece 24 bent at two positions is sandwiched between the tamper-evidence ring 21 and the upper body 6a. By visually recognizing this state, it is possible to determine the opening history of whether or not the bottle is opened. In addition, when the plug is opened, each of the pair of branch pieces 24 provided in the tamper evidence ring 21 interferes with the locking claw portion 15 provided in the upper body portion 6a of the lower plug 2 with a time difference, so that the tamper evidence ring 21 is provided. Therefore, the force applied when opening the plug can be reduced as compared with a mode in which a large number of bridges are cut at a time and the opening history is visually recognized.

このように、タンパーエビデンスリング２１を下栓２に残すことなく、ブリッジ部２２を介して係合本体部２０に連結させたままの状態で、タンパーエビデンスリング２１の分割状態により開栓履歴を判断できるので、タンパーエビデンスリング２１を下栓２に残す形態と比較すると、タンパーエビデンスリング２１の下栓２からの脱落防止構造を設ける必要がなく、簡易な構造で構成することができる。   In this manner, the tapping evidence ring 21 is determined based on the divided state of the tamper evidence ring 21 while the tamper evidence ring 21 is not connected to the lower plug 2 but remains connected to the engagement main body portion 20 via the bridge portion 22. Therefore, as compared with the mode in which the tamper evidence ring 21 is left in the lower plug 2, it is not necessary to provide a structure for preventing the tamper evidence ring 21 from dropping from the lower plug 2, and a simple structure can be provided.

なお、本発明を実施するための最良の形態では、容器内の内容物を注出する筒状の注出部を、容器の口部３に装着された下栓２とする形態を説明したが、下栓２を設けることなく、容器の口部３に、直接キャップ本体部１をねじ係合させる形態も考慮され、その場合には、容器の口部３の胴部に、タンパーエビデンスリング２１の回り止め手段３０に対向する係止爪部１５を形成すればよい。   In the best mode for carrying out the present invention, a mode has been described in which the cylindrical pouring part for pouring the contents in the container is the lower plug 2 attached to the mouth part 3 of the container. Further, a mode in which the cap main body 1 is directly screw-engaged with the mouth 3 of the container without providing the lower stopper 2 is also considered. In this case, the tamper evidence ring 21 is placed on the body of the mouth 3 of the container. What is necessary is just to form the latching claw part 15 which opposes the rotation prevention means 30 of this.

図１は、本発明の実施の形態に係るキャップのタンパーエビデンス構造の断面図である。FIG. 1 is a cross-sectional view of a tamper evidence structure of a cap according to an embodiment of the present invention. 図２は、本発明の実施の形態に係るキャップのタンパーエビデンス構造の構成である下栓の平面図である。FIG. 2 is a plan view of a lower stopper that is a configuration of the tamper evidence structure of the cap according to the embodiment of the present invention. 図３は、本発明の実施の形態に係るキャップのタンパーエビデンス構造の構成である下栓の断面図である。FIG. 3 is a cross-sectional view of the lower stopper which is a configuration of the tamper evidence structure of the cap according to the embodiment of the present invention. 図４は、本発明の実施の形態に係るキャップのタンパーエビデンス構造の構成である上栓の断面図である。FIG. 4 is a cross-sectional view of the upper plug which is a configuration of the tamper evidence structure of the cap according to the embodiment of the present invention. 図５は、図４のＡ方向から見た図である。FIG. 5 is a view seen from the direction A in FIG. 図６は、図５のＢ部を拡大して示す断面図である。FIG. 6 is an enlarged cross-sectional view of a portion B in FIG. 図７は、図６のＣ方向から見た図である。FIG. 7 is a view seen from the direction C in FIG. 図８は、上栓と下栓とが係合している状態における上栓の回り止め手段と下栓の係合爪部との位置関係を示す拡大図である。FIG. 8 is an enlarged view showing a positional relationship between the upper stopper rotation-preventing means and the lower stopper engaging claw in a state where the upper stopper and the lower stopper are engaged. 図９は、本発明の実施の形態に係るキャップのタンパーエビデンス構造の構成である上栓の側面の一部を示す図である。FIG. 9 is a view showing a part of the side surface of the upper plug, which is the structure of the tamper evidence structure of the cap according to the embodiment of the present invention.

符号の説明Explanation of symbols

１ 上栓（キャップ本体部）
２ 下栓（注出部）
６ 胴部
６ａ 上方胴部
１５ 係止爪部
１５ｂ 係止部
２１ タンパーエビデンスリング
２４ 分岐片
２４ａ 外側基部
２４ｂ 係止端部
２４ｃ 内側基部
２５ 凹部
２６、２６ａ 薄肉壁部
２７ 弱化線
２８ スリット部
２９ 薄膜部
３０ 回り止め手段
1 Upper stopper (cap body)
2 Lower stopper (pouring part)
6 trunk part 6a upper trunk part 15 locking claw part 15b locking part 21 tamper evidence ring 24 branch piece 24a outer base part 24b locking end part 24c inner base part 25 concave part 26, 26a thin wall part 27 weakening line 28 slit part 29 thin film Part 30 Non-rotating means

Claims (2)

容器内の内容物を注出する筒状の注出部と、該注出部にねじ係合する有底筒状のキャップ本体部とからなり、
該キャップ本体部は、その下縁に沿って筒状のタンパーエビデンスリングを複数のブリッジ部を介して垂下し、該タンパーエビデンスリングの内周面に、開栓方向の先端に係止端部を有する回り止め手段をタンパーエビデンスリングの中心に対して対向する位置に設け、且つ各回り止め手段が接続される前記タンパーエビデンスリングの壁部周辺に、前記タンパーエビデンスリングを分割可能とする弱化線を縦方向に設けてなり、
前記各回り止め手段は、前記タンパーエビデンスリングの内周面から分岐し開栓方向に延び、先端に前記係止端部を有する分岐片と、該分岐片を収容可能とする前記タンパーエビデンスリングの内周面に設けた凹部とから構成され、
前記注出部は、前記タンパーエビデンスリングが嵌合する胴部に、開栓方向に対向する係止部を有する係止爪部を設けてなり、
前記キャップ本体部と前記注出部とが係合された状態で、前記回り止め手段の係止端部と前記係止爪部の係止部とが対向して配置されることを特徴とするキャップのタンパーエビデンス構造。 A cylindrical pouring part for pouring out the contents in the container, and a bottomed cylindrical cap body part that is screw-engaged with the pouring part,
The cap main body part has a cylindrical tamper-evidence ring suspended via a plurality of bridge parts along a lower edge thereof, and a locking end part is provided on the inner peripheral surface of the tamper-evidence ring at the tip in the opening direction. An anti-rotation means having a tamper-evidence ring is provided at a position facing the center of the tamper-evidence ring, and a weakening line that allows the tamper-evidence ring to be divided around a wall portion of the tamper-evidence ring to which each anti-rotation means is connected. In the vertical direction,
Each of the anti-rotation means branches from the inner peripheral surface of the tamper evidence ring, extends in the opening direction, has a branch piece having the locking end at the tip, and the tamper evidence ring that can accommodate the branch piece. It is comprised from the recessed part provided in the internal peripheral surface,
The dispensing portion is provided with a locking claw portion having a locking portion facing the opening direction on the trunk portion into which the tamper evidence ring is fitted,
The locking end of the detent means and the locking portion of the locking claw are arranged to face each other in a state where the cap main body and the extraction portion are engaged. Tamper evidence structure of the cap. 前記分岐片の係止端部は、タンパーエビデンスリングの中心から放射方向に向かう鉛直面と、外方の角部を傾斜させた傾斜面とを有し、
前記弱化線は、前記凹部により設けられた薄肉壁部の、前記分岐片が分岐する基部側に形成され、この位置における前記薄肉壁部にスリット部を縦方向に形成すると共に、該スリット部に連設する薄膜部を縦方向に形成して構成され、
前記タンパーエビデンスリングに一体に接続された分岐片の基部に、前記分岐片を内方に折り曲げるための薄肉壁部を縦方向に形成することを特徴とする請求項１に記載のキャップのタンパーエビデンス構造。 The latching end portion of the branch piece has a vertical surface in the radial direction from the center of the tamper evidence ring, and an inclined surface in which an outer corner is inclined,
The weakening line is formed on the thin wall portion provided by the concave portion on the base side where the branch piece branches, and a slit portion is formed in the thin wall portion at this position in the vertical direction, and the slit portion Constructed by forming the continuous thin film part in the vertical direction,
The tamper evidence of the cap according to claim 1 , wherein a thin wall portion for bending the branch piece inward is formed in a vertical direction at a base portion of the branch piece integrally connected to the tamper evidence ring. Construction.
JP2003302987A 2003-08-27 2003-08-27 Tamper evidence structure of cap Expired - Lifetime JP4378606B2 (en)

Priority Applications (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102481414A (en) * 2010-03-03 2012-05-30 泰尔茂株式会社 Syringe

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006264743A (en) * 2005-03-24 2006-10-05 Maretaka Co Ltd Closure device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102481414A (en) * 2010-03-03 2012-05-30 泰尔茂株式会社 Syringe
CN102481414B (en) * 2010-03-03 2014-08-20 泰尔茂株式会社 Syringe

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